"ESDU 98005 provides graphical and tabular effectiveness - NTU data for a wide range of practical heat exchanger configurations. The data are presented in ""family groups"" based on exchanger types@ and for each family group there is an Index of Geometries@ within which each particular configuration (which may cover a range of practical heat exchangers) is identified by a concise description and a unique acronym. A data sheet is given for each configuration including graphical information and a detailed description. The description includes where available the mathematical relationship between E@ NTU and C* (the stream thermal capacity ratio) and its source@ notes on the derivation of the data@ maximum and asymptotic effectiveness data and expressions@ a curve for the temperature meet@ and the coefficients of an algebraic expression for effectiveness that has been fitted to the data for most configurations. Data are provided for a wide range of single- and multi-pass crossflow configurations (including serpentine)@ single- and multi-pass E- and J-shells@ trains of E- and J-shells@ single F-@ G- and X-shells@ and single- and multi-pass plate-type configurations. ESDU 98003 describes the method and introduces the data presented here and in ESDU 98004 where the data are in a convenient form for selection purposes. The use of the method is illustrated in design studies in ESDU 98006. Analytical techniques used to derive the data are described in ESDU 98007."